Re: PIL issue opening an image file

I found the issue: it is the path to the image. When I change the problem line to

image = Image.open(os.path.realpath('C:\Users\Lloyd\Desktop\Lloyd.png'))

it works, but I cannot hard code the path and I cannot predict where the user will try to upload a file from. Isn't there a way to dynamically get the path from the file upload dialogue where the user browses to it and selects it?

Thanks...

On Fri, Nov 26, 2010 at 3:49 PM, Sithembewena Lloyd Dube <zebra05@gmail.com> wrote:

Hi all,

I have a Photo model which should take an image, generate a thumbnail and save both the original and the thumbnail images. I registered the model in the admin site, but when I select an image to upload and click 'Save', I get an error as follows:

Request Method:     POST
Request URL:     http://127.0.0.1:8000/admin/browse/photo/add/
Django Version:     1.2.3
Exception Type:     IOError
Exception Value:    

[Errno 2] No such file or directory: u'Lloyd.png'

Exception Location:     C:\Python26\lib\site-packages\PIL\Image.py in open, line 1952
Python Executable:     C:\Python26\python.exe
Python Version:     2.6.5

The model looks like this (the line where the error occurs is highlighted):

class Photo(models.Model):
     """
     An avatar for a site member
     """
     title =                       models.CharField(max_length=50)
     photo =                       models.ImageField(upload_to='photos/')
     thumbnail =                   models.ImageField(upload_to='thumbnails/', editable=False)

     def save(self):
          from PIL import Image
          from cStringIO import StringIO
          from django.core.files.uploadedfile import SimpleUploadedFile

          # Set our max thumbnail size in a tuple (max width, max height)
          THUMBNAIL_SIZE = (65, 65)

          # Open original photo which we want to thumbnail using PIL's Image
          # object
          image = Image.open(self.photo.name)

          # Convert to RGB if necessary
          # Thanks to Limodou on DjangoSnippets.org
          # http://www.djangosnippets.org/snippets/20/
          if image.mode not in ('L', 'RGB'):
               image = image.convert('RGB')

          # We use our PIL Image object to create the thumbnail, which already
          # has a thumbnail() convenience method that contrains proportions.
          # Additionally, we use Image.ANTIALIAS to make the image look better.
          # Without antialiasing the image pattern artifacts may result.
          image.thumbnail(THUMBNAIL_SIZE, Image.ANTIALIAS)

          # Save the thumbnail
          temp_handle = StringIO()
          image.save(temp_handle, 'png')
          temp_handle.seek(0)

          # Save to the thumbnail field
          suf = SimpleUploadedFile(os.path.split(self.photo.name)[-1],
               temp_handle.read(), content_type='image/png')
          self.thunbnail.save(suf.name+'.png', suf, save=False)

          # Save this photo instance
          super(Photo, self).save()

          class Admin:
               pass

          def __str__(self):
               return self.title

What could the issue be? Any ideas welcome.

Thanks.
--
Regards,
Sithembewena Lloyd Dube
http://www.lloyddube.com

--
Regards,
Sithembewena Lloyd Dube
http://www.lloyddube.com

--
You received this message because you are subscribed to the Google Groups "Django users" group.
To post to this group, send email to django-users@googlegroups.com.
To unsubscribe from this group, send email to django-users+unsubscribe@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/django-users?hl=en.